Re: [ES40-developers] Segfault in CDisk constructor

[Camiel V. <iam...@gm...>]

Hi Brian,

The private devid_string shouldn't be there at all. I've removed it
and updated CVS.

Camiel.

On Thu, Feb 21, 2008 at 3:52 PM, Brian Wheeler <bdw...@in...> wrote:
> I'm getting a segfault when the free(devid_string) is being run.  I
>  added a line to print out the value of devid_string prior to the free()
>  and here's what I get:
>
>  pci0.2(cirrus): $Id: Cirrus.cpp,v 1.13 2008/02/20 22:29:25 iamcamiel Exp $
>  pci0.3(sym53c810): $Id: Sym53C810.cpp,v 1.5 2008/02/18 13:44:48 iamcamiel Exp $
>  Devid string: 0xba0
>  %SYS-F-SEGFAULT: The Alpha Simulator has Segfaulted.
>  -SYS-F-SEGFAULT: Backtrace follows.
>  backtrace() returned 12 addresses.
>   12 ./es40(_Z12segv_handleri+0x1c) [0x431abc]
>   11 /lib64/libc.so.6 [0x3651230f30]
>   10 /lib64/libc.so.6(cfree+0x3b) [0x3651275edb]
>   9 ./es40(_ZN5CDiskC2EP13CConfiguratorP7CSystemP15CDiskControllerii+0xb1) [0x43cc81]
>   8 ./es40(_ZN9CDiskFileC1EP13CConfiguratorP7CSystemP15CDiskControllerii+0x19) [0x43f779]
>   7 ./es40(_ZN13CConfigurator10initializeEv+0x535) [0x438515]
>   6 ./es40(_ZN13CConfigurator10initializeEv+0x1ca) [0x4381aa]
>   5 ./es40(_ZN13CConfigurator10initializeEv+0x1ca) [0x4381aa]
>   4 ./es40(_ZN13CConfiguratorC1EPS_PcS1_S1_m+0x41b) [0x438c5b]
>   3 ./es40(main+0x1a4) [0x431944]
>   2 /lib64/libc.so.6(__libc_start_main+0xf4) [0x365121e074]
>   1 ./es40(__gxx_personality_v0+0x119) [0x410af9]
>
>  Is it some weird clash between Disk.h's protected devid_string and
>  SystemComponent's public devid_string?  commenting out the free() causes
>  everything to work ok.
>
>  It looks like it was added in version 1.9 which was jan 9th.  Since it
>  has been working, I suspect that the compiler just glossed over the
>  problem until something recently was changed (or an optimization change)
>
>  Brian
>
>
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